A5017500219- Atmospheric chemistry and aerosols
- Marine and coastal ecosystems
- Air Quality and Health Impacts
- Microbial Community Ecology and Physiology
- Glycosylation and Glycoproteins Research
- Air Quality Monitoring and Forecasting
- Mass Spectrometry Techniques and Applications
- Isotope Analysis in Ecology
- Atmospheric aerosols and clouds
- Genomics and Phylogenetic Studies
- Atmospheric and Environmental Gas Dynamics
- Vehicle emissions and performance
- Aquatic Ecosystems and Phytoplankton Dynamics
- Advanced Chemical Sensor Technologies
- RNA and protein synthesis mechanisms
- Atmospheric Ozone and Climate
- Bacteriophages and microbial interactions
- Gut microbiota and health
- Bacterial Identification and Susceptibility Testing
- Advanced Proteomics Techniques and Applications
- Carbohydrate Chemistry and Synthesis
- Microbial Metabolic Engineering and Bioproduction
- Bee Products Chemical Analysis
- Metabolomics and Mass Spectrometry Studies
- Xenotransplantation and immune response
Korea Basic Science Institute
2016-2025
Korea University of Science and Technology
2017-2024
California Institute of Technology
2014-2020
Division of Chemistry
2020
Cheongju University
2019
Seoul National University
2005-2013
Soongsil University
2013
Gyeongnam National University of Science and Technology
2011
Abstract Microbes regulate the composition and turnover of organic matter. Here we developed a framework called Energy-Diversity-Trait integrative Analysis to quantify how dissolved matter microbes interact along global change drivers temperature nutrient enrichment. Negative positive interactions suggest decomposition production processes matter, respectively. We applied this manipulative field experiments on mountainsides in subarctic subtropical climates. In both climates, negative...
The diversity of intrinsic traits different organic matter molecules makes it challenging to predict how they, and therefore the global carbon cycle, will respond climate change. Here we develop an indicator compositional-level environmental response for dissolved quantify aggregated individual that positively negatively associate with warming. We apply assess thermal sediment in 480 aquatic microcosms along nutrient gradients on three Eurasian mountainsides. Organic consistently temperature...
Microbial coculture to mimic the ecological habitat has been suggested as an approach elucidate effect of microbial interaction on secondary metabolite biosynthesis Streptomyces. However, because chemical complexity during coculture, underlying mechanisms are largely unknown. Here, we found that iron competition triggered antibiotic in Streptomyces coelicolor with Myxococcus xanthus. During M. xanthus enhanced production a siderophore, myxochelin, leading dominate scavenging and S....
Lakes receive and actively process terrestrial dissolved organic matter (DOM) play an important role in the global carbon cycle. Urbanization results elevated inputs of nonpoint-source DOM to headwater streams. Retention water lakes allows time for alteration transformation chemical composition by microbes UV radiation. Yet, it remains unclear how anthropogenic natural drivers impact biolability non-pristine lakes. We used optical spectroscopy, Fourier transform ion cyclotron mass...
Large reservoirs are hotspots for carbon emissions, and the continued input decomposition of terrestrial dissolved organic matter (DOM) from upstream catchments is an important source emissions. Rainstorm events can cause a surge in DOM input; however, periodic sampling often fails to fully capture impact these discrete rainstorm on We conducted set frequent observations prior following event major reservoir Lake Qiandao (China; 580 km2) June July 2021 investigate how rainstorms alter water...
Dissolved organic matter (DOM) is a large and complex mixture of molecules that fuels microbial metabolism regulates biogeochemical cycles. Individual DOM have unique functional traits, but how their assemblages vary deterministically under global change remains poorly understood. Here, we examine associated bacteria in 300 aquatic microcosms deployed on mountainsides span contrasting temperatures nutrient gradients. Based molecular trait dimensions reactivity activity, partition the...
Abstract Organic carbon decomposition in lake sediments contributes substantially to the global cycle and is strongly affected by temperature. However, magnitude of temperature sensitivity ( Q 10 ) underlying factors remain unclear at continental scale. Carbon quality (CQT) hypothesis asserts that less reactive more recalcitrant molecules tend have higher sensitivities, but its support challenged complex composition organic matter environmental constraints. Here, we quantified across 50...
Dissolved organic matter (DOM) released from permafrost thaw greatly influences the biogeochemical cycles of, among others, downstream carbon, nitrogen and phosphorus cycles; yet, knowledge of linkages between bacterial communities with DOM heterogeneity is limited. Here, we aim at unravelling responses diversities metabolic profiles to quantity composition across thawing gradients by coupling an extensive field investigation bio-incubation experiments. Richness, evenness dissimilarities...
Abstract Large rivers are the main arteries for transportation of carbon to ocean; yet, how hydrology and anthropogenic disturbances may change composition export dissolved organic matter along large river continuums is largely unknown. The Yangtze River has a watershed area 1.80 × 10 6 km 2 . It originates from Qinghai‐Tibet Plateau flows 6300 eastward through center China. We collected samples ( n = 271) continuum analyzed weekly at most downstream situated gauging station in 2017–2018...
Although the particle phase state is an important property, there scant information on it, especially, for real-world aerosols. To explore of fine mode aerosols (PM2.5) in two megacities, Seoul and Beijing, we collected PM2.5 filter samples daily from Dec 2020 to Jan 2021. Using optical microscopy combined with poke-and-flow technique, states bulk as a function relative humidity (RH) were determined compared ambient RH ranges cities. was found be liquid semisolid but mostly solid Beijing....
Alpine river and lake systems on the Tibetan Plateau are highly sensitive indicators amplifiers of global climate change important components carbon cycle. Dissolved organic matter (DOM) encompasses in aquatic systems, yet knowledge about DOM variation throughout river–lake continuum within alpine regions is limited. We used optical spectroscopy, ultrahigh-resolution mass spectrometry (Fourier transform ion cyclotron resonance spectrometry), stable water isotopic measurements to evaluate...